Article
Vector Acoustic Intensity Around a Tuning Fork
American Journal of Physics
Document Type
Article
Publication Date
2-1-2013
Abstract
The acoustic intensity vector field around a tuning fork is investigated. Theory for a longitudinal quadrupole source predicts a well-defined transition between near-field and far-field, with significant circulation of sound energy in the near-field. Vector components of the time-averaged intensity were measured using a two-microphone intensity probe and found to agree well with predictions from theory. The vector intensity map is interpreted, and shown to provide useful information about the near-field of an acoustic source.
Disciplines
DOI
http://dx.doi.org/10.1119/1.4769784
Rights Statement
© 2013 American Journal of Physics, posted with permission
Citation Information
Daniel A. Russell, Justin Junell and Daniel O. Ludwigsen. "Vector Acoustic Intensity Around a Tuning Fork" American Journal of Physics Vol. 81 Iss. 2 (2013) p. 99 - 103 ISSN: 1943-2909 Available at: http://works.bepress.com/daniel-ludwigsen/3/